"I call on Mr Palmer today to do one thing: stop spending money on election campaigning around Australia when you don't seem to have the money to fulfil your environmental obligations in Townsville and your obligations to 1,000 men and women who rely on jobs at the nickel refinery," he said.

"What about the hundreds of people who lost their job at the Palmer resort? Again, he spends money on election advertising while that resort, which was once an iconic Queensland destination, is falling apart and is a sad, sick joke."

No financial incentive to join PUP: Anderson

Ms Anderson arrived at Alice Springs in Mr Palmer's jet on Sunday afternoon and says she was not paid to join the Palmer United Party.

She said the move is about having a third choice for voters in the Northern Territory.

"I think that it's a third force in the Northern Territory that gives an alternative party to people of the Northern Territory," she said.

"We've always put up with Labor and we've always put up with the Country Liberals and I've been in both Heckle and Jeckle and it's making sure that there's a third party giving people a lot more choices."

Ms Anderson confirmed that she made the first contact with Mr Palmer.

"It is about unity of the NT and engaging in another party that comes forward to the NT and Clive Palmer is certainly welcome in the NT," she said.

"We want his wealth of knowledge."

But Opposition treasury spokesman Chris Bowen has questioned the politics of Ms Anderson.

"At least one of those MPs has joined the Labor Party, the Country Liberal Party and now apparently the Palmer United Party," he said.

"She is doing a Billy Hughes and moving around the political spectrum ... it's clear the Chief Minister has lost control."

The Country Liberals Government retained its majority earlier this month, with Nathan Barrett winning the by-election in the seat of Blain - the seat vacated by former chief minister Terry Mills who was ousted from the leadership by Adam Giles last year.

During the Blain by-election campaign, Mr Giles had offered the three MLAs the chance to come back to the Country Liberals.